Granted Patent
Utility
US 5,565,302 · App. 08/426,369
Process for preparing photosensitive resin composition
Inventors:
Hiroshi Samukawa, Katsue Nishikawa, Yoshichi Hagiwara
Patented Case
View Patent ↗
Granted: Oct 15, 1996
Filed: Apr 21, 1995
Inventors
Hiroshi Samukawa
Katsue Nishikawa
Yoshichi Hagiwara
Assignee (at issue)
W.R. Grace & Co. Conn.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.